Refrigeration compressor with dual voltage hookup

Details Refrigeration compressor with dual voltage hookup Refrigeration compressor with dual voltage hookup

1988-04-28

1989-01-31

Tanner, Harry B.

Refrigeration

With alternately usable energy sources

62326, 310 71, 439926, F25B 2700

Patent

active

048007323

ABSTRACT:
A compressor driven by a three phase electric motor is contained within a housing that is filled with refrigerant and is hermetically sealed with a terminal board. The terminal board has three electrical feedthrough terminals for coupling three of the motor's six winding leads to a three phase power source. An insulator having a fourth terminal is disposed inside the housing and is attached to one of the feedthrough terminals. In a high voltage application, such as 4160 volts, the fourth terminal provides a convenient location to attach the motor's three remaining leads to a common point. In a low voltage hookup, such as 2400 volts, the fourth terminal is disregarded, and the three remaining leads are separated and paired up with the three leads that are connected to the feedthrough terminals.

REFERENCES:
patent: 2174536 (1939-10-01), Smith
patent: 2418729 (1947-04-01), Schemers
patent: 2579973 (1951-12-01), Schlosser
patent: 2702362 (1955-02-01), Falck
patent: 4252394 (1981-02-01), Miller

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